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Soil Organic Carbon Research and Hotspot Analysis Based on Web of Science: A Bibliometric Analysis in CiteSpace

Author

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  • Manman Fan

    (School of Geography and Planning, Huaiyin Normal University, Huaian 223300, China)

  • Wenyan Yang

    (School of Geography and Planning, Huaiyin Normal University, Huaian 223300, China)

  • Jingtao Wu

    (School of Geography and Planning, Huaiyin Normal University, Huaian 223300, China)

  • Huan Zhang

    (College of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, China)

  • Zhengwei Ye

    (School of Geography and Planning, Huaiyin Normal University, Huaian 223300, China)

  • Muhammad Shaukat

    (Department of Agricultural Sciences, Allama Iqbal Open University, Islamabad 44000, Pakistan)

Abstract

Soil carbon sequestration is an important process of the terrestrial carbon cycle, and even slight changes in soil carbon will trigger drastic variations in the global carbon pool. In this study, we used the CiteSpace software to analyze the development of research on soil organic carbon (SOC) and its current status from various perspectives, with the goal of revealing research hotspots and trends of SOC. A total of 3909 studies published between 2014 and 2023 were included in the analysis. Results show that China and the USA lead with a significant number of publications on SOC, which underscores their considerable interest in the subject. France and the USA exhibit a very high international influence in this field, with their intermediary centrality reaching up to 0.3 and 0.21, respectively. Among institutions, the Chinese Academy of Sciences is the largest contributor in terms of the number of publications, with a high centrality of 0.09, indicating this institution has built close collaboration and significant influence in this field. Kuzyakov Yakov achieved the highest publication record, with Lal Rattan sharing the second position. The hotspots in SOC can be summarized into the following aspects: conservation tillage, carbon sequestration, microbial biomass, and driving forces. The research focus has gradually shifted from macroscopic trends to explanations based on micro-level biological dynamics. Driving forces such as soil type, land use, and environmental conditions have a significant impact on the quantity, turnover, and spatiotemporal distribution of SOC. We highlighted that more attention should be paid to the mechanism of SOC transformation and stabilization, which is essential for developing more precise models of carbon cycling in the soil and for formulating effective strategies to maintain sustainable agriculture and mitigate climate change.

Suggested Citation

  • Manman Fan & Wenyan Yang & Jingtao Wu & Huan Zhang & Zhengwei Ye & Muhammad Shaukat, 2024. "Soil Organic Carbon Research and Hotspot Analysis Based on Web of Science: A Bibliometric Analysis in CiteSpace," Agriculture, MDPI, vol. 14(10), pages 1-19, October.
  • Handle: RePEc:gam:jagris:v:14:y:2024:i:10:p:1774-:d:1494580
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    References listed on IDEAS

    as
    1. Johannes Lehmann & Markus Kleber, 2015. "The contentious nature of soil organic matter," Nature, Nature, vol. 528(7580), pages 60-68, December.
    2. Chaomei Chen, 2006. "CiteSpace II: Detecting and visualizing emerging trends and transient patterns in scientific literature," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 57(3), pages 359-377, February.
    3. Cameron M. Pittelkow & Xinqiang Liang & Bruce A. Linquist & Kees Jan van Groenigen & Juhwan Lee & Mark E. Lundy & Natasja van Gestel & Johan Six & Rodney T. Venterea & Chris van Kessel, 2015. "Productivity limits and potentials of the principles of conservation agriculture," Nature, Nature, vol. 517(7534), pages 365-368, January.
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